Collect Security Command Center Unspecified logs

This document explains how to export and ingest Security Command Center Unspecified logs into Google Security Operations using Cloud Storage. The parser transforms raw JSON formatted security findings into a unified data model (UDM). It specifically handles inconsistencies in the input data structure, extracts relevant fields like vulnerability details and user information, and enriches the output with labels and metadata for improved analysis and correlation.

Before you begin

Ensure that you have the following prerequisites:

• Security Command Center is enabled and configured in your Google Cloud environment.
• Google SecOps instance.
• Privileged access to Security Command Center and Cloud Logging.

Create a Cloud Storage bucket

1. Sign in to the Google Cloud console .

2. Go to the Cloud Storage Bucketspage.

   Go to Buckets

3. Click Create.

4. On the Create a bucketpage, enter your bucket information. After each of the following steps, click Continueto proceed to the next step:

   1. In the Get startedsection, do the following:

      1. Enter a unique name that meets the bucket name requirements; for example, gcp-scc-unspecified-logs.

      2. To enable hierarchical namespace, click the expander arrow to expand the Optimize for file oriented and data-intensive workloadssection, and then select Enable Hierarchical namespace on this bucket.

      3. To add a bucket label, click the expander arrow to expand the Labelssection.

      4. Click Add label, and specify a key and a value for your label.

   2. In the Choose where to store your datasection, do the following:

      1. Select a Location type.

      2. Use the location type menu to select a Locationwhere object data within your bucket will be permanently stored.

      3. To set up cross-bucket replication, expand the Set up cross-bucket replicationsection.

   3. In the Choose a storage class for your datasection, either select a default storage classfor the bucket, or select Autoclassfor automatic storage class management of your bucket's data.

   4. In the Choose how to control access to objectssection, select notto enforce public access prevention, and select an access control modelfor your bucket's objects.

   5. In the Choose how to protect object datasection, do the following:

      1. Select any of the options under Data protectionthat you want to set for your bucket.
      2. To choose how your object data will be encrypted, click the expander arrow labeled Data encryption, and select a Data encryption method.

5. Click Create.

Configure Security Command Center logging

1. Sign in to the Google Cloud console .

2. Go to the Security Command Centerpage.

   Go to Security Command Center

3. Select your organization.

4. Click Settings.

5. Click the Continuous Exportstab.

6. Under Export name, click Logging Export.

7. Under Sinks, turn on Log Findings to Logging.

8. Under Logging project, enter or search for the project where you want to log findings.

9. Click Save.

Configure Security Command Center Unspecified Logs Export

1. Sign in to the Google Cloud console .
2. Go to Logging > Log Router.
3. Click Create Sink.

4. Provide the following configuration parameters:

   • Sink Name: enter a meaningful name; for example, scc-unspecified-logs-sink .
   • Sink Destination: select Cloud Storage Storageand enter the URI for your bucket; for example, gs://gcp-scc-unspecified-logs .

   • Log Filter:

       logName 
      = 
      "projects/<your-project-id>/logs/cloudsecurityscanner.googleapis.com%2Funspecified" 
     resource.type = 
      "security_command_center_unspecified" 
      
     

   • Set Export Options: Include all log entries.

5. Click Create.

Configure permissions for Cloud Storage

1. Go to IAM & Admin > IAM.
2. Locate the Cloud Loggingservice account.
3. Grant the roles/storage.adminon the bucket.

Set up feeds

To configure a feed, follow these steps:

1. Go to SIEM Settings > Feeds.
2. Click Add New Feed.
3. On the next page, click Configure a single feed.
4. In the Feed namefield, enter a name for the feed; for example, Security Command Center Unspecified logs.
5. Select Google Cloud Storage V2as the Source type.
6. Select Security Command Center Unspecifiedas the Log type.
7. Click Get Service Accountnext to the Chronicle Service Accountfield.
8. Click Next.

9. Specify values for the following input parameters:

   • Storage Bucket URI: Cloud Storage bucket URL; for example, gs://gcp-scc-unspecified-logs .

   • Source deletion options: select the deletion option according to your preference.

   • Maximum File Age: Includes files modified in the last number of days. Default is 180 days.

10. Click Next.

11. Review your new feed configuration in the Finalizescreen, and then click Submit.

UDM Mapping Table

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